Description: SPR/ASF.GetCodec.Gen is a detection for multimedia files that contain a special command to download new codecs. Normally, codecs are required to play video or audio formats. This mechanism got hijacked by malware, which simply downloads Trojans instead of a real new codec. ASF, WMA and WMV files are affected, a recent Trojan converts MP3 files into the ASF file format and adds a command to download malicious code. The Wimad Trojan family also uses this method.

Version history: The following engine update was released in order to enhance detection: